Added dask-image

[TomAugspurger]

dask/dask-image#396 is fixing a minor issue upstream, so that we don't get warnings about unknown markers.

BTW, I currently see a failure locally:

_______________________________ test_cupy_imread _______________________________

tmp_path = PosixPath('/tmp/pytest-of-toaugspurger/pytest-241/test_cupy_imread0')

    @pytest.mark.cupy
    def test_cupy_imread(tmp_path):
        a = np.random.uniform(low=0.0, high=1.0, size=(1, 4, 3)).astype(np.float32)
    
        fn = str(tmp_path/"test.tiff")
        with tifffile.TiffWriter(fn) as fh:
            for i in range(len(a)):
>               fh.save(a[i])
E               AttributeError: 'TiffWriter' object has no attribute 'save'

packages/dask-image/tests/test_dask_image/test_imread/test_cupy_imread.py:17: AttributeError
=========================== short test summary info ============================
FAILED packages/dask-image/tests/test_dask_image/test_imread/test_cupy_imread.py::test_cupy_imread - AttributeError: 'TiffWriter' object has no attribute 'save'
=============== 1 failed, 141 passed, 2291 deselected in 11.51s ================

I haven't done any investigation to see if that's related.

cc @jakirkham.

Closes #38

[jakirkham]

Thanks Tom! 🙏

Looks like a breaking change in tifffile. Have raised as issue: dask/dask-image#397

Edit - Added a fix in PR: dask/dask-image#398 (now merged!)

[jakirkham]

Also Tom caught some issues with flake8 tests being missed. Fixing that up in PR: dask/dask-image#396

[jakirkham]

What updates should be made to the previous gpuCI content?

dask/dask-image#400

[jakirkham]

Thanks again Tom for working on this! 🙏

Think we merged all of your upstream fixes.

What are the next steps here?

[TomAugspurger]

I think we're ready. I'll merge this now and it should be picked up in the next run (~11 hours from now I think).

[jakirkham]

Ok sounds good. Thanks Tom! 🙏

Please let us know how it goes 🙂